Improvement in shuttles for looms



T. CHEETHAM.

Shuttle. for Looms.

N0. l64,144. Patented1une8,l875.

- WITNESSES ENVFNTOR ATTORNEYS,

THE GRAPHIC C0.PHOTO l.ITH.39&4J PARK PLAGEJLY.

UNITED STATES PATENT OFFICE.

THOMAS OHEETHAM, OF LEwIsTON, MAINE.

IMPROVEMENT IN SHUTTLES FOR LOOMS.

Specification forming part of Letters Patent No. 164,144, dated J one 8,1875 application filed April 24, 1875.

To all whom it may concern Be it known that I, THOMAS OHEETHAM, ofLewiston, in the county of Androscoggin and State of Maine, haveinvented a new and valuable Improvement in Self-Threadin g ShuttleFriction-Guides; and I do hereby declare that the following is a full,clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawings, making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure 1 of the drawings is arepresentation of a transverse section ofmy device, and Fig. 2 is a plan View of the same. Fig. 3 is alongitudinal sectional view of the same.

This invention has relation to shuttles; and

it consists in the construction and arrangement of a thread-guide andfriction device adapted and designed to regulate the tension of theshuttle-thread, and at the same time to prevent accidental looping andconsequent breaking of the unwinding thread, as hereinafter fully shownand described.

In the accompanying drawings, the letter A designates a loom-shuttle; B,the spindle thereof; and (J, the cop of thread. At the delivery end ofthe shuttle, beyond the spindleslot, is formed a recess or seat for thereception of the friction-pad a, of cloth or other other suitablematerial. The oblique discharging or delivery eye 1) leads into thisrecess beyond the friction-pad a, which is preferably rolled or packedin convex form, as shown, to expose a considerable surface of contact tothe passing thread 0. The friction-recess d communicates with thespindle-slot by an open passage for the thread from the cop. Between thedelivery end of the spindle and the friction-pad a is arranged thethread guide c. This is usually formed of wire secured to theshuttle-body by a loop and pin at one end, and at the other end bentspirally in the form of an eye, the end of the wire not being in contactwith any portion of the bend, but separated therefrom sufficiently forthe free passage of the thread between said end and the adjacent portionof the bend. This eye is arranged opposite, in line with and near theend of the spindle, and is, according to the preferred arrangement ofthe friction-pad, somewhat lower than its upper portion, being aboutlevel with the channel of the deliveryeye I). The spiral bend of the eyeis in the opposite direction from that in which the cop is wound. Hence,as the thread is unwound from the cop over the friction-pad through thedelivery-eye b, it Will pass into the guide 6, which controls the threadand regulates the frictional contact.

It will be observed that in the use of this thread-guide and frictiondevice no additional labor is entailed upon the attendant.

What I claim as new, and desire to secure by Letters Patent, is

The combination, with a shuttle having a spindle, B, delivery-eye b, andfriction-pad a, of the threading-guide e, constructed as shown, allarranged and operating together substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

THOMAS OHEETHAM. Witnesses:

JOHN GARNE LINNEUS OHEE'IHAM.

